also: さんぷう
noun
mountain wind; wind blowing from the mountains
Refers to wind that blows down from mountains, often cool or strong. The reading やまかぜ is the everyday term; さんぷう is a rarer Sino-Japanese reading used in some literary or technical contexts.
夕方になると、山風が涼しく感じられる。
In the evening, the mountain wind feels cool.
山風が強く吹いて、木々がざわめいた。
A strong mountain wind blew, and the trees rustled.
谷風 is a valley wind, blowing up from the valley, often during the day, while 山風 is a mountain wind blowing down from the mountains, typically at night or in the evening.
Compound of 山 (yama, 'mountain') and 風 (kaze, 'wind'). The reading やまかぜ is the native Japanese reading; さんぷう is the Sino-Japanese reading.